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Stephen F. Austin State University

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Articles 61 - 90 of 101

Full-Text Articles in Forest Biology

The Influence Of Predator Threat On The Timing Of A Life-History Switch Point: Predator-Induced Hatching In The Southern Leopard Frog (Rana Sphenocephala), James B. Johnson, Daniel Saenz, Cory K. Adams, Richard N. Conner Jan 2003

The Influence Of Predator Threat On The Timing Of A Life-History Switch Point: Predator-Induced Hatching In The Southern Leopard Frog (Rana Sphenocephala), James B. Johnson, Daniel Saenz, Cory K. Adams, Richard N. Conner

Faculty Publications

We tested the hypotheses that potential egg predators, crayfish Procambarus nigrocinctus and dytiscid Cybister sp. larvae, would accelerate the timing of hatching and that a larval predator, dragonfly naiad Anax junius, would delay hatching in the southern leopard frog (Rana sphenocephala). We also tested the hypothesis that differences in response would be proportional to predator lethality. Our results indicate that our hypotheses were partially supported. The presence of an efficient egg predator (crayfish) induces hatching faster than a less efficient predator (dytiscid larvae). However, the presence of a larval predator (naiads) did not delay hatching. Eggs that …


Are Pileated Woodpeckers Attracted To Red-Cockaded Woodpecker Cavity Trees?, Richard N. Conner, Daniel Saenz, James R. Mccormick Jan 2002

Are Pileated Woodpeckers Attracted To Red-Cockaded Woodpecker Cavity Trees?, Richard N. Conner, Daniel Saenz, James R. Mccormick

Faculty Publications

Pileated Woodpeckers (Dryocopus pileatus) cause damage to Red-cockaded Woodpecker (Picoides borealis) cavity trees in the form of cavity enlargement or other excavations on the surface of the pine tree. However, it is not known whether Pileated Woodpeckers excavate more frequently on Red-cockaded Woodpecker cavity trees than on noncavity trees or how stand structure is related to the frequency of Pileated Woodpecker excavation. Also, it is unclear whether the cavity itself provides the stimulus to Pileated Woodpeckers to excavate or whether the presence of Red-cockaded Woodpeckers and their activities are attracting them. We surveyed all of the …


Prey Handling And Diet Of Louisiana Pine Snakes (Pituophis Ruthveni) And Black Pine Snakes (P. Melanoleucus Lodingi), With Comparisons To Other Selected Colubrid Snakes, D. Craig Rudolph, Shirley J. Burgdorf, Richard N. Conner, Christopher S. Collins, Daniel Saenz, Richard R. Schaefer, Toni Trees, C. Michael Duran, Marc Ealy, John G. Himes Jan 2002

Prey Handling And Diet Of Louisiana Pine Snakes (Pituophis Ruthveni) And Black Pine Snakes (P. Melanoleucus Lodingi), With Comparisons To Other Selected Colubrid Snakes, D. Craig Rudolph, Shirley J. Burgdorf, Richard N. Conner, Christopher S. Collins, Daniel Saenz, Richard R. Schaefer, Toni Trees, C. Michael Duran, Marc Ealy, John G. Himes

Faculty Publications

Diet and prey handling behavior were determined for Louisiana pine snakes (Pituophis ruthveni) and black pine snakes (P. melanoleucus lodingi). Louisiana pine snakes prey heavily on Baird's pocket gophers (Geomys breviceps), with which they are sympatric, and exhibit specialized behaviors that facilitate handling this prey species within the confines of burrow systems. Black pine snakes, which are not sympatric with pocket gophers, did not exhibit these specialized behaviors. For comparative purposes, prey handling of P. sayi sayi and Elaphe obsoleta lindheimeri was also examined.


Movement Patterns Of Resident And Relocated Northern Bobwhites In East Texas, Xiangwen Liu, R. Montague Whiting Jr., D. Scott Parsons, Donald R. Dietz Jan 2002

Movement Patterns Of Resident And Relocated Northern Bobwhites In East Texas, Xiangwen Liu, R. Montague Whiting Jr., D. Scott Parsons, Donald R. Dietz

Faculty Publications

We compared home range sizes and movement patterns of resident and relocated northern bobwhites (Colinus virginianus) on an area managed specifically for the species in the Pineywoods of east Texas. During the winters of 1990–1992, 155 south Texas, 136 east Texas, and 139 resident bobwhites were radiomarked, released, and thereafter regularly located. Bird locations were plotted on a digitized map, and home range sizes and movement patterns of each group of birds were estimated. Resident bobwhites moved longer daily distances in March and had larger home ranges during the nesting season (May-Jul) than relocated birds (P0.05). Managers that elect to …


Development, Testing, And Implementation Of The Temple-Inland, Inc. Sustainable Forest Management System (Tinsms), 2001, Arthur Temple College Of Forestry And Agriculture Jan 2001

Development, Testing, And Implementation Of The Temple-Inland, Inc. Sustainable Forest Management System (Tinsms), 2001, Arthur Temple College Of Forestry And Agriculture

eBooks

No abstract provided.


A Red-Cockaded Woodpecker Group With Two Simultaneous Nest Trees, Richard N. Conner, James R. Mccormick, Richard R. Schaefer, Daniel Saenz, D. Craig Rudolph Jan 2001

A Red-Cockaded Woodpecker Group With Two Simultaneous Nest Trees, Richard N. Conner, James R. Mccormick, Richard R. Schaefer, Daniel Saenz, D. Craig Rudolph

Faculty Publications

During a study of Red-cockaded Woodpecker (Picoides borealis) nesting in eastern Texas, we discovered a single breeding pair of woodpeckers with two simultaneous nests in nest trees that were 24 m apart. Incubation of eggs in each nest tree was at least 13 d and may have been as long as 16 d. The breeding male incubated and fed a nestling in one nest tree, and the breeding female incubated and fed a nestling in the other nest tree until the nestlings were >24 d old. Prior to fledging, both the breeding male and female were observed feeding …


An Unusually Large Number Of Eggs Laid By A Breeding Red-Cockaded Woodpecker Female, Richard N. Conner, Daniel Saenz, James R. Mccormick Jan 2001

An Unusually Large Number Of Eggs Laid By A Breeding Red-Cockaded Woodpecker Female, Richard N. Conner, Daniel Saenz, James R. Mccormick

Faculty Publications

The Red-cockaded Woodpecker (Picoides borealis) is a cooperatively breeding species that typically uses a single cavity for nesting (Ligon 1970, Walters et al. 1988). A single tree, or aggregation of cavity trees, termed the cluster, is inhabited by a group of woodpeckers that includes a single breeding pair and up to several helpers, which are typically male offspring of previous breeding seasons (Ligon 1970, Lennartz et al. 1987). Each group of Red-cockaded Woodpeckers usually produces one nest per breeding season, but will often nest again during the same breeding season if the first nest fails. Double clutching and …


Cutting Your Timberland Taxes, May 19-20, 2000, Arthur Temple College Of Forestry And Agriculture May 2000

Cutting Your Timberland Taxes, May 19-20, 2000, Arthur Temple College Of Forestry And Agriculture

eBooks

No abstract provided.


Survival And Causes Of Mortality Of Relocated And Resident Northern Bobwhites In East Texas, Xiangwen Liu, R. Montague Whiting Jr., Brad S. Mueller, D. Scott Parsons, Donald R. Dietz Jan 2000

Survival And Causes Of Mortality Of Relocated And Resident Northern Bobwhites In East Texas, Xiangwen Liu, R. Montague Whiting Jr., Brad S. Mueller, D. Scott Parsons, Donald R. Dietz

Faculty Publications

We estimated survival of 3 groups of northern bobwhites (Colinus virginianus) on a 563-ha intensively managed study area in eastern Texas. During the 3-year study, 155 bobwhites from South Texas and 136 bobwhites from East Texas were captured, radio-marked, and relocated to the study area; 139 bobwhites that were resident on the study area were also captured, radio-marked, and released at the point of capture. There were no differences (P > 0.05) in survival among the 3 groups of bobwhites. However, survival of bobwhites from South Texas were consistently lower than those of the other 2 groups during each year; both …


Life In A Pine Cone, David L. Kulhavy Jan 2000

Life In A Pine Cone, David L. Kulhavy

Faculty Publications

This exercise focuses on a little-known microhabitat -- the pine cone. A pine cone's primary function is, of course, reproduction ... housing the seeds of the next generation of conifer trees. However, pine cones are also the basis of a food web that provides both resources and living space for a wide variety of small arthropod species. The procedure outlined below is designed to examine this microhabitat and compare its community diversity among different species of conifers and habitats.

The exercise is based on a 1985 paper, Life in a Pine Cone, by David L. Kulhavy, Robert S. Baldridge and …


Food Plot Use By Juvenile Northern Bobwhites In East Texas, D. Scott Parsons, R. Montague Whiting Jr., Xiangwen Liu, Donald R. Dietz Jan 2000

Food Plot Use By Juvenile Northern Bobwhites In East Texas, D. Scott Parsons, R. Montague Whiting Jr., Xiangwen Liu, Donald R. Dietz

Faculty Publications

We examined use of spring-summer (i.e., warm-season) food plots by northern bobwhites (Colinus virginianus) with broods using radio telemetry on a 563-ha study area in Trinity County, eastern Texas, where habitat was modified to enhance it for these birds. Bobwhites from South Texas and disjunct areas of East Texas were introduced to supplement a small, resident population. All relocated and most resident bobwhites were fitted with necklace-style transmitters. Bobwhites which produced chicks were intensively radiotracked (≥3 times/day) for ≥4 weeks or until the radio-marked parent was lost. Nine hens moved their broods to food plots within an average of 2.1 …


Reproduction Of Relocated And Resident Northern Bobwhites In East Texas, D. Scott Parsons, R. Montague Whiting Jr., Xiangwen Liu, Brad S. Mueller, Stanley L. Cook Jan 2000

Reproduction Of Relocated And Resident Northern Bobwhites In East Texas, D. Scott Parsons, R. Montague Whiting Jr., Xiangwen Liu, Brad S. Mueller, Stanley L. Cook

Faculty Publications

We examined reproduction by relocated and resident northern bobwhites (Colinus virginianus) on an intensively managed 563-ha study area in Trinity County, eastern Texas. During the late winters of 1990-1992, 155 South Texas (84 hens, 71 cocks) and 136 East Texas (64 hens, 72 cocks) bobwhites were captured, radio-tagged, and relocated to the study area; 139 resident birds (73 hens, 66 cocks) were also captured, radio-tagged, and released at the point of capture. For the 3 years combined, the 33 South Texas, 33 East Texas, and 39 resident hens alive at the beginning of the breeding season produced 6, 13, and …


Relationships Of Selected Soil Properties And Community Species Composition In Turkey Hill Wilderness Area In East Texas, Kenneth W. Farrish, Brian P. Oswald Jan 1999

Relationships Of Selected Soil Properties And Community Species Composition In Turkey Hill Wilderness Area In East Texas, Kenneth W. Farrish, Brian P. Oswald

Faculty Publications

-Sixty-nine different stands within 15 different previously managed communities were sampled in what is now the Turkey Hill Wilderness of the Angelina National Forest. Within each stand, 0.04 ha plots were randomly located, and the height, diameter, crown class and species of each tree recorded. Soil samples were collected in two locations within each plot, and the soil type confirmed at plot center. Soil samples were analyzed for selected soil chemical and physical properties. Due to the low occurrence (less than 4 times) of some communities, only six community types were analyzed Analysis of the vegetation and soil data using …


Seedling Survival And Natural Regeneration For A Bottomland Hardwood Planting On Sites Differing In Site Preparation, Daniel T. Johns, Brett Williams, Hans M. Williams, Matthew Stroupe Jan 1999

Seedling Survival And Natural Regeneration For A Bottomland Hardwood Planting On Sites Differing In Site Preparation, Daniel T. Johns, Brett Williams, Hans M. Williams, Matthew Stroupe

Faculty Publications

In January 1998, three tracts in Hardin County, TX, were hand-planted with seven species of 1-0 bareroot bottomland hardwood seedlings. The tracts, managed by The Nature Conservancy of Texas, were previously 20-year-old pine plantations. The tracts are located within the floodplain of Village Creek. An objective for this conversion is the restoration of a bottomland hardwood wetland in order to meet Clean Water Act requirements. A pre-harvest plant inventory was conducted for each tract. The tracts were clearcut during the Winter and Spring of 1997. Following harvest, each tract was subjected to a different site preparation technique. One tract was …


Species Pools Of Seed Plants In Eastern Asia And North America, Shiyou Li, Kent T. Adair Jan 1997

Species Pools Of Seed Plants In Eastern Asia And North America, Shiyou Li, Kent T. Adair

eBooks

"In their monograph, Species Pools of seed plants in Eastern Asia and North America, Drs. Li and Adair present a comprehensive analysis of data collected during a ten-year study involving 10,000 plant species in east Asia and North America."


Deer Use Of Riparian Zones And Adjacent Pine Plantations In Texas, Micah L. Poteet, Ronald E. Thill, R. Montague Whiting Jr., R. Lee Rayburn Jan 1996

Deer Use Of Riparian Zones And Adjacent Pine Plantations In Texas, Micah L. Poteet, Ronald E. Thill, R. Montague Whiting Jr., R. Lee Rayburn

Faculty Publications

The authors monitored white-tailed deer (Odocoileus virginianus) use of riparian zones (RZ’s) and adjacent pine plantations of 3 age classes (young, 1 to 3 years old; intermediate, 5 to 7 years old; and older, 9 to 13 years old) using radio telemetry for 2 years on a 1,300 ha study area near Alto, TX. Riparian zones comprised 22.0 percent of the area; young, intermediate, and older pine plantations comprised 19.1 percent, 45.7 percent, and 13.2 percent, respectively. Based on data from 4 to 9 deer the first year and 12 to 17 deer the second year, home ranges averaged 103, …


Xi Shu, A Promising Anti-Tumor And Anti-Viral Tree For The 21st Century, Shiyou Li, Kent T. Adair Jan 1994

Xi Shu, A Promising Anti-Tumor And Anti-Viral Tree For The 21st Century, Shiyou Li, Kent T. Adair

eBooks

"Drs. Shiyou Li and Kent T. Adair have prepared a monograph which reviews in a thorough manner the subsequent history of CPT and analogs from discovery to promising clinical drugs. In addition, the monograph provides a wealth of novel data concerning botanical, ecological, agronomical, and cultural information, much of it presented for the first time in this interesting monograph."


Evaluating Susceptibility Of Red-Cockaded Woodpecker Cavity Trees To Southern Pine Beetle In Texas, William G. Ross, David Kulhavy, Richard N. Conner Jan 1993

Evaluating Susceptibility Of Red-Cockaded Woodpecker Cavity Trees To Southern Pine Beetle In Texas, William G. Ross, David Kulhavy, Richard N. Conner

Faculty Publications

Characteristics of loblolly (Pinus fuedu L.) and shortleaf (Pinus echinutu Mill.) pine trees favored by the endangered red-cockaded woodpecker, Picuides borealis (Vieillot) for nesting and roosting cavities over much of eastern Texas, tend to make these trees highly vulnerable to mortality from bark beetle attack. Resin flow and xylem moisture potential, often used as indicators of pine susceptibility to bark beetle mortality, were measured in several red-cockaded woodpecker cavity tree clusters in the Angelina and Davy Crockett National Forests. No differences in xylem moisture potential were found, while resin flow varied by site, tree species, and cavity tree type. With …


Activity Patterns And Habitat Use Of Northern Bobwhite Females In 2 Grazing Systems, R. Montague Whiting Jr., Denise L. Sloan Jan 1993

Activity Patterns And Habitat Use Of Northern Bobwhite Females In 2 Grazing Systems, R. Montague Whiting Jr., Denise L. Sloan

Faculty Publications

During spring and summer of 1985 and 1986, we investigated activity patterns and habitat use of female northern bobwhite (Colinus virginianus) on 2 sites in south Texas. One site had been subjected to a short duration grazing (SDG) system and the other to a continuous grazing (CG) system. Nineteen females were radio-tagged in 1985 and 28 in 1986. Rainfall was above average in 1985 and below average in 1986; as a result, herbaceous ground cover was more dense in 1985 than in 1986. Due to extensive fencing, 58% of the SDG cell was within 25 m of a mowed roadside, …


Bugs! Bugs! Bugs! Not Just For Children Anymore! Seeking A National Perspective, David L. Kulhavy Oct 1991

Bugs! Bugs! Bugs! Not Just For Children Anymore! Seeking A National Perspective, David L. Kulhavy

Faculty Publications

Insects as interpretive tools are an invaluable resource for the interpreter. There are many uses, from live insect displays to pinned specimens to the use of insects puppets in classrooms, conferences or other interpretive arenas. In this paper, the use of mealworms, the monarch butterfly as a candidate for our national insect, and the demonstration of insect locomotion are presented. The key to successful interpretation using insects is to encourage audience participation, exude enthusiasm, and promote the use of insects as an easy resource to acquire.


Silviculture And The Red-Cockaded Woodpecker: Where Do We Go From Here?, David Kulhavy, W. G. Ross, Richard N. Conner, James H. Mitchell, Gloria Maples Chrismer Jan 1991

Silviculture And The Red-Cockaded Woodpecker: Where Do We Go From Here?, David Kulhavy, W. G. Ross, Richard N. Conner, James H. Mitchell, Gloria Maples Chrismer

Faculty Publications

Recent standards and guidelines for the protection and management of red-cockaded woodpecker habitat within 3/4 mi of colony sites, and also thinning within colonies to reduce basal area and midstory will have a significant effect on National Forest lands. The relation of these thinnings to forest pest management will be examined as well as the area of forest involved. Current fire regulations in relation to prescribed burns and potential fuel buildup will be examined. Plans for research, including disturbances, hazard, and risk rating for southern pine beetle and landscape changes will be presented.


Physiology Of Red-Cockaded Woodpecker Cavity Trees: Implications For Management, William G. Ross, David Kulhavy, Richard N. Conner, Jianghua Sun Jan 1991

Physiology Of Red-Cockaded Woodpecker Cavity Trees: Implications For Management, William G. Ross, David Kulhavy, Richard N. Conner, Jianghua Sun

Faculty Publications

Resin flow and tree moisture stress, frequently used as indicators of pine susceptibility to pine bark beetle (Dendroctonus frontalis Zimm.) attack, were measured in loblolly (Pinus taeda L.) and shortleaf (P. echinata Mill.) pines red-cockaded woodpecker [Picoides boreal& (Vieillot)] cavity trees in the Angelina and Davy Crockett National Forests in eastern Texas. No differences in moisture stress were found, whereas resin flow between different types of cavity trees and control or potential trees varied by site and species. It was concluded that effects of red-cockaded woodpecker activity on host tree susceptibility to southern pine beetle will vary by site, tree …


Ipps Spp. Natural Enemy Relationships In The Gulf Coastal States, David Kulhavy, R. A. Goyer, M A. Riley Jan 1989

Ipps Spp. Natural Enemy Relationships In The Gulf Coastal States, David Kulhavy, R. A. Goyer, M A. Riley

Faculty Publications

No abstract provided.


Promoting Soft Mast For Wildlife In Intensively Managed Forests, John J. Stransky, John H. Roese Jan 1984

Promoting Soft Mast For Wildlife In Intensively Managed Forests, John J. Stransky, John H. Roese

Faculty Publications

The fruit of woody plants is important as food for wildlife (Martin et al. 1951, Lay 1965). The relation of fruit production to southern forest stand conditions has been explored in only a few studies. Fruit production is greater in forest clearings than in closed forest stands (Lay 1966, Elalls and Alcaniz 1968). In Georgia slash pine (Pinus elliottii) plantations, fruit yields of shrubs are greatest in 4-yeas-old stands, and soil disturbance in site preparation greatly reduces fruit yields (Johnson and Landers 1978). Total fruit production is greatest in 5-year-old bedded loblolly pine (P. taeda) plantations …


Southern Pine Beetle Handbook: Woodpeckers And The Southern Pine Beetle, James Kroll, Richard N. Conner, Robert R. Fleet Jan 1980

Southern Pine Beetle Handbook: Woodpeckers And The Southern Pine Beetle, James Kroll, Richard N. Conner, Robert R. Fleet

eBooks

In 1974 the U.S. Department of Agriculture initiated the Combined Forest Pest Research and Development Program, an interagency effort that concentrated on the Douglas-fur tussock moth in the West, on the southern pine beetle in the South, and on the gypsy moth in the Northeast. The work reported in this publication was funded in part by the Program. This handbook is one in a series on the southern pine beetle.


Key To The Wood-Decaying Polyporaceae Of The East Texas Region, Steve Bishop, W. T. Mcgrath Jan 1978

Key To The Wood-Decaying Polyporaceae Of The East Texas Region, Steve Bishop, W. T. Mcgrath

eBooks

The family includes those pore fungi whose fruiting bodies are tough, leathery or woody and whose pore layer usually cannot be separated easily from the context. The pores on the undersurface are only exterior openings of tubes bearing spores and in each species these tube mouths, or pores, are a definite shape and size. Occasionally pore walls will break up giving the appearance of teeth or gills. Fruiting bodies can be sessile, stemmed, effused-reflexed or resupinate (Fig . 2). Members of the family can be either perennial or annual, with the annual species growing during the summer and maturing that …


The Southern Pine Beetle, Dendroctonus Frontalis Zimm, 1961-1971, Jack E. Coster Jun 1972

The Southern Pine Beetle, Dendroctonus Frontalis Zimm, 1961-1971, Jack E. Coster

eBooks

In the last decade, since the appearance of the comprehensive reviews of southern pine beetle (SPB), Dendroctonus frontalis Zimm. (Coleoptera :Scolytidae ) *, literature by Thatcher (1960) and Dixon and Osgood (1961), much research progress on the insect has been realized. This review condenses reports of research on the insect published since 1961.


Forestry Bulletin No. 22: Silviculture Of Southern Upland Hardwoods, Laurence C. Walker Jan 1972

Forestry Bulletin No. 22: Silviculture Of Southern Upland Hardwoods, Laurence C. Walker

Forestry Bulletins No. 1-25, 1957-1972

"Upland hardwood types occur throughout the forests of the southern United States. Sometimes deciduous species intermingle with pines to form mixed conifer-broadleaf types; other times hardwood types are interspersed with pine types; depending upon soil, physiography, past land use, and fire."


Forestry Bulletin No. 21: Diseases Of Forest Trees And Forest Products, A. F. Verrall Sep 1970

Forestry Bulletin No. 21: Diseases Of Forest Trees And Forest Products, A. F. Verrall

Forestry Bulletins No. 1-25, 1957-1972

This bulletin covers the roles and types of diseases and fungi found in forest trees and products. It also discusses principles of disease prevention and control.


Forestry Bulletin No. 20: A Short History Of Forest Conservation In Texas, 1880-1940, Robert S. Maxwell, James W. Martin Jan 1970

Forestry Bulletin No. 20: A Short History Of Forest Conservation In Texas, 1880-1940, Robert S. Maxwell, James W. Martin

Forestry Bulletins No. 1-25, 1957-1972

"This short history of the development of forest conservation in Texas is intended primarily for the general reader. The study has concentrated on the early history of the conservation movement, dating from the beginning of commercial lumbering in the state, approximately 1880, to about 1940 and World War II."